Multiquip MQP30DZ, MQP20IZ Mechanical Installation Exhaust System, Exhaust System Installation

MECHANICAL INSTALLATION — EXHAUST SYSTEM

Exhaust System Installation

A proper exhaust system installation will ensure safe working conditions and maximum engine efficiency. All MQ Power- MQP Series, standby, engine-generators have factory- designed mufflers, exhaust connectors and rain caps available for each model. For best performance and ease of mounting, it is recommended the factory components be used whenever practical. Refer to Table 17 on page 49 for a complete listing of factory recommended exhaust silencers for each model. A properly installed exhaust system routes engine exhaust to a safe location where the exhaust can dissipate with fresh air.The exhaust system disperses engine exhaust fumes, soot, and noise away from people, vents and buildings. It is essential to the performance of the engine- generator set that the installed exhaust system does not exceed the engine manufacturer’s maximum exhaust backpressure limit. Pressure drop of an exhaust system includes losses due to piping, silencer and termination. High backpressure can cause a decrease in engine efficiency or increase in fuel consumption, overheating, and may result in a complete shut down of the engine-generator. Potential damage could result. Refer to Table 17 on page 49 for back pressure limits for each model generator set.

Field Installing A Generator Exhaust System

All work should be completed by qualified persons familiar with the installation, construction and operation of generator sets. All work should be completed in accordance with the National Fire Protection Association (NFPA), Uniform Building Code (UBC) and other state or local codes.

Some generators require little or no engine exhaust component installation. In most cases, if the generator set is equipped with a manufacturer’s installed, weather protective enclosure, the engine exhaust system is generally already mounted and plumbed within or on top of the generator enclosure. There is little or no site work that has to take place. Check with the engine-generator manufacturer for specific details.

DO NOT use exhaust heat to warm a room, compartment, or storage area.

Weight applied to the engine manifold can result in turbocharger damage. Support the muffler and exhaust piping so no weight or stress is applied to the engine exhaust elbow.

Inhalation of exhaust gases can result in severe personal injury or death!

Use extreme care during installation to provide a tight exhaust system. Terminate exhaust pipe away from enclosed or sheltered areas, windows, doors, and vents.

Figure 14. Mounting Exhaust Thimble

PAGE 46 — INDUSTRIAL GENERATOR SETS — APPLICATION & INSTALLATION MANUAL — REV. #4 (09/07/07)